David Arquette leaves RehabNearly one month after entering himself into a rehab facility to treat problems with "alcohol and other issues," David Arquette has checked himself out.

Arquette completed his treatment on Sunday. "He has competed his treatment and has left," his rep tells PEOPLE. Another source told PEOPLE that Arquette is "in great spirits. He's feeling good and he's ready to move forward."

Arquette had checked into rehab at the beginning of January. The actor moved into a live-in rehab facility to address an alcohol problem following a New Year's Eve party at Arquette & Beacher's Madhouse Theater, located at the Roosevelt Hotel in Los Angeles. According to its website, the venue features a "Flying Midget bartender" and had the "atmosphere of a circus."

A source close to Arquette told TMZ at the time that he was seeking help because it was "the right thing to do for his family." PEOPLE quoted another insider who confirms the star entered rehab for "drinking and depression, not hard drugs."